Abstract: Serializer/deserializer (SerDes) modules, equalizers, and equalization techniques having robust parameter initialization may substantially reduce convergence time. One illustrative equalizer includes: a discrete-time, finite impulse response (“FIR”) filter to convert a receive signal to a filtered signal; a decision element to determine channel symbols represented by the filtered signal; and a controller. The controller is configured to, for each of multiple values in a search range, estimate a performance of the equalizer based on the channel symbols and at least one of the filtered signal or an input signal to the decision element; configured to find a centroid value based on the performance for each of the multiple parameter values in the search range; and configured to derive an initial value for the parameter from the centroid value.

Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to identify a center of valley (CoV) of a set of read levels. The controller detects a read error associated with reading data from the set of memory components in accordance with an individual read level of a plurality of read levels and, in response to detecting the read error, generates a plurality of bins as a function of a plurality of check failure bit count values and one or more error count values corresponding to a set of read levels adjacent to the individual read level. The controller computes the CoV for the individual read level based on a pair of read levels defined by a set of the plurality of bins and updates a read level used to read the data based on the computed CoV.

Abstract: A cooking appliance including a cooking chamber configured to cook food therein and openable in a first direction, a shelf provided to be inserted into the cooking chamber in the first direction and having a cooking surface on which food is placed, a magnetron configured to generate high frequency waves to be supplied to the shelf, and a heat generating member configured to generate heat by the high frequency waves generated by the magnetron. Where the cooking surface includes a first area on one side and a second area on another side, the heat generating member includes a first heat generating portion configured to supply heat to the first area and a second heat generating portion disposed to correspond to the second area, and the first heat generating portion supplies more heat to the first area than the second heat generating portion supplies to the second area.

Abstract: Apparatuses and methods for performing read operations using an offset based upon slow charge loss characteristics are provided. One example apparatus can include a controller configured to apply a read voltage to a word line in the array of memory cells during a read operation on the word line, wherein the read voltage includes an offset associated with a slow charge loss characteristic of the word line.

Abstract: A cooking appliance including a cooking chamber configured to cook food therein and openable in a first direction, a shelf provided to be inserted into the cooking chamber in the first direction and on which food is placed, and a plurality of heaters configured to supply heat to the shelf and disposed at one side of the cooking chamber. Where the shelf includes a first area arranged at one side in a second direction perpendicular to the first direction and a second area arranged at another side in the second direction. The plurality of heaters includes a first heater disposed to correspond to the first area in a third direction perpendicular to the first and second areas and a second heater disposed to correspond to the second area in the third direction. The plurality of heaters configured to provide more heat to the first area than to the second area.

Abstract: Disclosed herein are methods, apparatuses and systems related to manage memory blocks. A memory system can track a duration while a memory block remains open for programming operations. When the tracked duration meets or exceeds a corresponding threshold, the memory system can implement an internally commanded programming operation to store predetermined data into an open location that is adjacent to an end of the previously-written data in the memory block.

Abstract: The present invention relates to a method for preparing a pyrrolopyridine derivative compound exhibiting antiviral activity, and a novel intermediate used therein. The preparation method of the present invention enables reaction steps to be reduced through effective process development and a high purity pyrrolopyridine derivative compound to be prepared in a high yield, and thus enables production costs to be remarkably reduced so as to be economical and to be suitable for mass production.

Abstract: A request to perform a read operation on a multi-bit memory cell is received. A read operation on a respective page of the multi-bit memory cell is performed for each page of the multi-bit memory cell. Whether the respective page is at least one of either a lower logical page (LP) or an upper logical page (UP) of the multi-bit memory cell is determined responsive to determining that the read operation on the respective page failed. A read error handling operation on the respective page is performed. A read level associated with a successful read of the respective page is obtained from the read error handling operation. An ordering of a plurality of entries of a read retry data structure associated with the read error handling operation is rearranged based on the obtained read level responsive to determining that the respective page is the LP or UP.

Abstract: A system and method for detecting a failure of a set of memory cells in a memory device, determining a recovery indicator associated the failure, the recovery indicator corresponding to a subset of cells of the set of memory cells, and the subset of cells having a threshold voltage above a read level, where the read level corresponds to a per-cell memory density of the plurality of cells of the memory device, determining a data recovery operation based on whether the recovery indicator satisfies a threshold condition, the threshold condition corresponding to the read level, and causing the data recovery operation to be performed on the set of memory cells.

Abstract: Disclosed herein are methods, apparatuses and systems related to manage memory blocks. A memory system can track a duration while a memory block remains open for programming operations. When the tracked duration meets or exceeds a corresponding threshold, the memory system can implement an internally commanded programming operation to store predetermined data into an open location that is adjacent to an end of the previously-written data in the memory block.

Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to identify a center of valley (CoV) of a set of read levels. The controller detects a read error associated with reading data from the set of memory components in accordance with an individual read level of a plurality of read levels and, in response to detecting the read error, generates a plurality of bins as a function of a plurality of check failure bit count values and one or more error count values corresponding to a set of read levels adjacent to the individual read level. The controller computes the CoV for the individual read level based on a pair of read levels defined by a set of the plurality of bins and updates a read level used to read the data based on the computed CoV.

Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to perform adaptive die selection for block family scan operations. The controller assigns a set of memory components to one or more groups of a plurality of groups based on respective storage characteristics of the set of memory components, each of the plurality of groups corresponding to different storage characteristics. The controller determines a maximum quantity of memory components to perform block family (BF) scan operations at an individual measurement period. The controller distributes the maximum quantity of memory components across the one or more groups to which the set of memory components are assigned and, at the individual measurement period, performs the BF scan operations on a portion of the set of memory components corresponding to the maximum quantity of memory components.

Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to detect erroneous empty pages. The controller detects a read error associated with reading data from a set of memory components in accordance with an individual read level of a plurality of read levels. In response to detecting the read error, the controller computes one or more check failure unit count values corresponding to the individual read level. The controller compares the one or more check failure unit count values to a threshold value and determines whether the read error corresponds to an empty page read error based on a result of comparing the one or more check failure unit count values to the threshold value.

Abstract: An example method of performing read operation with respect to a memory device comprises: receiving a request to perform a read operation with respect to a memory page of a memory device; identifying a block family associated with a block comprising the memory page; determining a block family-based read voltage level associated with the block family; performing, using the block family-based read voltage level, a read operation with respect to the memory page; determining, by performing an error correction operation with respect to the memory page, a new read voltage level associated with the block family; and associating, by a last successful read voltage level memory data structure, the new read voltage level as a last the successful read voltage level with the block family.

Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to identify a center of valley (CoV) of a set of read levels. The controller detects a read error associated with reading data from the set of memory components in accordance with an individual read level of a plurality of read levels and, in response to detecting the read error, generates a plurality of bins as a function of a plurality of check failure bit count values and one or more error count values corresponding to a set of read levels adjacent to the individual read level. The controller computes the CoV for the individual read level based on a pair of read levels defined by a set of the plurality of bins and updates a read level used to read the data based on the computed CoV.

Abstract: An example method of performing read operation with respect to a memory device comprises: receiving a request to perform a read operation with respect to a memory page of a memory device; identifying a block family associated with a block comprising the memory page; determining a block family-based read voltage level associated with the block family; performing, using the block family-based read voltage level, a read operation with respect to the memory page; determining, by performing an error correction operation with respect to the memory page, a new read voltage level associated with the block family; and associating, by a last successful read voltage level memory data structure, the new read voltage level as a last the successful read voltage level with the block family.

Abstract: Disclosed herein are methods, apparatuses and systems related to manage memory blocks. A memory system can track a duration while a memory block remains open for programming operations. When the tracked duration meets or exceeds a corresponding threshold, the memory system can implement an internally commanded programming operation to store predetermined data into an open location that is adjacent to an end of the previously-written data in the memory block.

Abstract: The present invention relates to a pyrrolopyridine derivative, a racemate thereof, a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and use thereof. The compound of the present invention has high selectivity and bioactivity against human immunodeficiency virus (HIV), and low toxicity, thus being useful as a therapeutic agent for viral infection, particularly human immunodeficiency virus (HIV) infection.

Abstract: The present disclosure relates to a novel nucleoside or nucleotide derivative, a racemate thereof, a stereoisomer thereof, or a pharmaceutically acceptable salt thereof; and a pharmaceutical composition for preventing or treating viral infection-associated diseases, containing the same as an active ingredient.

Abstract: A controller of a memory system performs a soft decoding without additional reads. The controller applies each of read voltages to cells to obtain a corresponding cell count and corresponding data, stores the obtained data, and processes the stored data. The controller determines a set of parameters, based on (i) the read voltages, (ii) cell counts corresponding to the read voltages and (iii) a non-negative regularization parameter. The controller estimates an optimal read voltage based on the set of parameters, generates log-likelihood ratio (LLR) values using the processed data and the optimal read voltage and performs soft decoding using the LLR values.